Well-drill.



EATENTED MAY 5, 19o-8.

H. B. KING.

WELL 1mm..

APPLIUATIOHv FILED 0GT.13, 1906.

BSHEETS-SHEET 1 n WM 7 7 WA PATENTED MAY 5, 1908.

LLv B. KING. WELL DRILL. APPLOATIO FILED 0012.13, 1906.

3 SHEBTS-SHEET 2.

Sis .mit

Jililmlm 1I Llull" Puf/V709:

W I A TTOR/Vfy.

ii HL. lhmltmw W DH y ff, M /L Y L D, d L L@ y d m 'tool for' comparativelylargeholes in,

Hamers. KING, CF HARTFORD CONNECTICUT, ASSIGNORVTO FRANK I. KNOX, Ol"

HARTFORD, CONNECTICUT.

WELL-DRILL.

' No. 386,704. specification of To all whom 'it may concern:

Be it known that I, HARVEY B.-KrNc,

`citizen of the United States, residing at Hart'- "cation., 1

-. This inventionrelate's to va' tool which is: employedfor well holes afnl-vr'l'iile'it "is seful for drillingl ordinary Artesianwells throiigh any iorr'nation of .--iand,..clay,v gravel-, .or rock ,..for Water, oil, gasyor' minerals, which" holes are of comparatively small diameter, 'it :is .more 'particularly de'signedQ-or drilling; hles fdr plunger. elevators *fand .the like through' solid rock-,` rsf-hichjfijioles .are vinuch Vlarger and sometinlesquiteeep andwhich in ust be. uniform-fin'. diameter' and perfectly "straightfandvertiealy; The fobect of the invention is to projvifidea" small size at the lower end that f'orn'isgan ad? vance -central cut o ordinary area'fin the -usual manner, and .drills-a littledistance n f -rom the lower e'nd thatfproject laterally-an cut beyond vthe sides' of the central advance,

'I cnt andA greatly increasetlie area of the hole,

.and that atthesame timeguide thel'tool so1 .the drills-cannot glance foil from specially l'ha'rdplaees intoj'softfer' redinm and croo the.. 'holeor.- canse 'fai-deviation.. from plumb,

Avhieh upperdrills, are substantially snp Eorted so that .as-'theywea'r away; 4they Amay e. easily adjiisted' to keep-,thesize of the holje accurate ,vor maytbe set to vary the size of the-- hole, without'heing and sharpened.

"To further rvent-the string of. tools from swaying an ru geilt4 of true inlthe hole andthii's causing t e drills. to',z'deviate,. a sleeve rovded with means 'for' holding -it central y in thehole jis arranged about' the isofislich' size that A the 'are freeto bei 4reci rocated vertically-i accomplish' the any-Way but verd ing b uteannot move Figure 1 :of he accompanying-drawings- Letters Patent. Patented May 5, 190B.

I Application led October 13, 1906. i Serial No. 338,747.

tools tha 'shows on larger' scale a side elevation with parts in section ofthe advance and following drills. Fig. 3. shows a horizontal section taken on the lane indicated by the line3-31 on Fig. 2.' ig. L4: shows a sectional view of` the guiding .'"sleeve 'and stem `ofi the `string. .Fig."5 shows. a' horizontal section taken on the lane indicated'by the line 54-5 on Fig. 42 l) `ig.. 6 is .a view looking up at the drills. Fi .'7 is a horizontal section'showing the f o owing drills'arranged to cutahole of one diameter. Fig. 48 shows the' same arranged -to out a1 hole of greater Idiarne ;erand 'Fi 9 showsthe saine arranged to outa hole of ess diameter.

Theadvarfce usual steel has 'its' lower cutting .edge 2 shaped 'as coininon with rock drills and provided With"cutting -oorners 2a. It also has the'ordinary tapering .threaded shankv 37- and. preferabl has a squared section for'the' application o the .Wrench b means of which it 1s screwed and unscrewe .l *The drillholder has a mortisei7, see 2, on each `side. for receiving the following drills .7 which have a cli-tti edge on the :which Ais 'screwed intothe ta ,erin threaded .f socket 4 in the lower end of t e dri l holder formed of suitable steel andare desirably. held in'plaee in the mortises 7** inthe sides of the holder by a b olt 8. The holder has a tapering.- threaded shank 9 which is-adapted to be screwed in t'o the -tapering threaded socket 1 0 in the lower end of the stem 11v and preferal-yv has a' squared section 12 for the application of'awi'ench.

As an example, .it may be stated that the advance drill may be shaped to cut-a central 6-'inch hole, an'dthe followingdrills may be of such sizeth'at they will cut an 18-inch hole.. .In drilling rock the outtingfedges 7b and corners 7950i thesef drills rapidly wear away. If the-following drills wear on the 10 0 -endsfand are not dull renough to reallY require sharpening they may be set out a ittle on the rollerby lacing Washers '5,5b, and: 5c

hole will .remain to gage'and not adually .become smaller. in diameter. sired, the-follc'nwing drills may be setv further yin (Fig. 9). sc that the hole will be smaller in diameter.

The stem is shows a portion' of 'a' Stringer well of. the usual diameter and i back-of thorn 1g. 8) 'so that the size of theor,:i ais de usual drill jar or ropeclamp length andhas the common squared sections 13 for the" a plication of awrenchand' a tapered shan '1.4" for connection with the I This string`of tools reciprocated and rotated by the ordinary apparatus for the purpose of causing the drills toch'ip therock.

The' advance drill ma be arranged so that its greatest width wil extend in -a plane flo - j 'drills as shown' in Fig. 6, so that the Afollowing transverselyto' 'the planes of the following drills vwill tendto keep the advance drill cen-V -traland ilrperfect alinement and the advance drill will tend to hold the following drills in correct position to produce a straight vertical hole.;

' I`o further assist in 'keeping the ybore straight andplurnb a sleeve 15 arranged -about the'small drill stem. The interior diameter of this'sleeve loosely fits .the stern so that the. steni Vwill reci roca-te .up'and down freely butcannot wa ble.or tip from side tofside in the hole which has been cut. Studs' 16 extend' outwardly from opposite sides o fthe 's leevesoas to keep the sleeve central in the tube 17 which is dropped down through the earth. of the boring or central in the `hole which is'drilled'in the rock as the caselmay be. This sleeve does not Vclog the open and it'is lowered .into or removed' from p ace by an 'ordinary'rope wire or chain and does not interfere with the movement up f'and down 'ofthe tool. f;

l This tool cuts very rapidly for the advance drill doesits work in the usual way and the 'following drills which only have.r to increase the siz'e of the c'ut chip away the'rcck very .ofthe drilll, these cuttin l' curatelfor the drillsguide. each other; they rapidly. There .are six corners; as clearly' shown in.Fig.'6, `the four cutting corners-7- 'o the drills 7 .and the -tWo'Y cutting corners 2 the circle instead oftwo as in the ordinary ill, insuringfaster cutting and an absolutely round hole. This construction permits the use of 4a small advancev drillV which is easily repaired o 'r regaged and sharpened by any blacksmith. And,'the following drills which make the hole large are comparatively light "and can be quickly-removedand easily re aired, -reset and sharpened byanyblacksmit f This tool bbviates the employment of Va .sin le large drill which cuts a full size hole' an which is very heavy to handle and transf ort when it is desired to resetv and sharpen it, a task which cannot be accomplished by every blacksmith onaccount of its size and Wei ht.

oles b oredby these tools are very acf each of which is rvided withoppositely Icuring" said following drills tothe holdr,said -x drills being sodisposed relative to' Vare sunk very rapidly, and theyV are perfectly plum-b and straighty.

The invention claiin'edzis:

. acentrally advanced drill removably fixed to diS- posed cutting e ges, means for removab following the advanced drill as to outback of and beyond the area Ivanced drill.

'2. A well lling tool having a drill holder, a centrally advancedv the holder, a pair 'of followilrg on oplposite sidesrof'the dr' whic is cutting e ges, and means orremovab curingjsaid following drills to the holder, said following -drills -being so" disposed relative to the advanced drill, as to cut back of 'and'be yyoud-the area of-theliple made -by said ad vanced drill.

a central'advance drill removably fixed to the-holderand a air of fixed to the sides bythe holder above theedvance' drill, cach plate having two cutting edges onfits lower side that extend outwardly and are arranged to c'i'it back of and beyond thearea of the opening formed by the advance drill, substantially as speciied.

4.5 A wellV 'lling tool having a drill holder, -a centralV advancedrill removably-hired to each,'of.sad following drills 'being rovlded cut beyondthe area of thehole made by the advance drill, the advance drill having-.its cutting' e gte exten versely-to't e planes o -the cutting ed es of following'drills, substantially as s eci ed. V 5. A well drillingtool having a 'll holder, 'a 'central advance drill, 4removably xed to th'e'holder, a lilrality of following drills reof said following drills'bein'g provided with beyond the 'area'ofthe hole ma e by the advance drill, a stem, and a sleeve loosely surrounding the stem and hol central in the hole formedby t stantially as specified.

e'drills', subxWitn'essesz i HARRY'R. WILLIAMS,

ETHEL M. Lown.

`the holderand a plurality of followlng drills,-

drill removably iixed toY drills arranged holder,geach 'of rovided with opfpositely disposed 3. afval drilling fooi having a dan bordel;l

the' holder" and a plurality'. of ollo drills removably ixedto the sidesfof the older;

Vin a plane trans-v oppositely disposed cutting edges that 'cut` HARVEY B. KING.-

1. A well drilling tool, having a drill holder, f f

plates removably I l'with oppositely 'disposed cutting' e ges that roo movably xe to the sides of the holder, each it true and 

